Question

我有一个内容可编辑的div，我想在按键事件触发时修改输入字符：

＆＃13;

$('#div').on('keypress', function (e) {
  e.preventDefault();
  $(e.target).trigger(jQuery.Event('keypress', { which: e.which + 1728 }));
});

＆＃13;

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="div" contenteditable>
Hi I am a div
</div>

＆＃13;

为什么这不起作用？

Answer 1

要在contenteditable中添加一个字符，您必须获得光标位置并粘贴到相同的位置。

您可以尝试以下代码。此代码由@Tim_Down提出：Changing the keypress和Need to set cursor position to the end of a contentEditable div, issue with selection and range objects

使用此功能，您可以创建一个地图键，用于在键击时添加所需的每个事件。

＆＃13;

var greekChars = {
    "a": "\u03b1"
    // Add character mappings here
};

function convertCharToGreek(charStr) {
    return greekChars[charStr] || "[stack]";
}

function insertTextAtCursor(text) {
    var sel, range, textNode;
    if (window.getSelection) {
        sel = window.getSelection();
        if (sel.getRangeAt && sel.rangeCount) {
            range = sel.getRangeAt(0);
            range.deleteContents();
            textNode = document.createTextNode(text);
            range.insertNode(textNode);

            // Move caret to the end of the newly inserted text node
            range.setStart(textNode, textNode.length);
            range.setEnd(textNode, textNode.length);
            sel.removeAllRanges();
            sel.addRange(range);
        }
    } else if (document.selection && document.selection.createRange) {
        range = document.selection.createRange();
        range.pasteHTML(text);
    }
}

var div = document.getElementById("div");

div.onkeypress = function(evt) {
    evt = evt || window.event;
    var charCode = (typeof evt.which == "undefined") ? evt.keyCode : evt.which;
    if (charCode) {
        var charStr = String.fromCharCode(charCode);
        var greek = convertCharToGreek(charStr);
        insertTextAtCursor(greek);
        return false;
    }
}

＆＃13;

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="div" contenteditable>
Hi I am a div
</div>

＆＃13;

如何在按键上更改contenteditable输入字符

1 个答案: